Andrew Hansen, PhD

Associate Professor, Graduate Program in Rehabilitation Science

Andrew Hansen

Contact Info

ahhansen@umn.edu

Mailing Address:
Physical Therapy Program
MMC 388 Mayo
8388A (Campus Delivery Code)
420 Delaware St SE
Minneapolis, MN 55455

Associate Professor, Graduate Program in Rehabilitation Science

Director, Rehabilitation Engineering Research Program, Minneapolis VA Health Care System


PhD, Northwestern University (Biomedical Engineering), 2002

MS, Northwestern University (Biomedical Engineering), 1998

BSE, University of Iowa (Biomedical Engineering), 1995

Research

Research Summary/Interests

Design and Evaluation of Rehabilitation Technologies, Human Biomechanics, Rehabilitation Engineering, Prosthetics and Orthotics, Rocker Shoes, Motion Analysis, Wheelchair Design and Evaluation

Research Funding Grants

1. Biomechanical Evaluation of Adaptable Ankle-Foot Prostheses - Department of Veterans Affairs, RR&D (PI: Hansen)

2. Rocker Shoes for Natural Immobilization of the Ankle during Single Limb Support - Department of Veterans Affairs, RR&D (PI: Hansen)

3. Testing and Refinement of a Hydraulic Adaptable Ankle-Foot Prosthesis - Department of Veterans Affairs, RR&D (PI: Hansen)

4. Pilot Study of the Tamarack WebSeat™ Custom Wheelchair Seating System - Minnesota Veterans Medical Research and Education Foundation (PIs: Hansen and Goldish)

5. Development of a Mobile Manual Standing Wheelchair - Paralyzed Veterans of America (PIs: Goldish and Hansen)

6. Development of a Manual Wheelchair for Improved Shoulder Biomechanics - Mike Utley Foundation (PIs: Hansen and Goldish)

Publications

Selected Publications:

  1. Meier MR, Hansen AH, Gard SA, McFadyen AK. (2012) Obstacle Course: Users’ Maneuverability and Movement Efficiency when using the Otto Bock C-Leg and 3R60, and the CaTech SNS Prosthetic Knee Joints. Journal of Rehabilitation Research and Development, Vol. 49, No. 4, 583-596.
  2. Boutwell E, Stine R, Hansen A, Tucker K, Gard S. (2012) Effect of Prosthetic Gel Liner Thickness on Gait and Pressure Distribution within the Transtibial Socket. Journal of Rehabilitation Research and Development, Vol. 49, No. 2, 227-240.
  3. Nickel EA, Hansen AH, Gard SA. (2012) Prosthetic Ankle-Foot System that Adapts to Sloped Surfaces. ASME Journal of Medical Devices, Vol. 6, No. 1, 011006.
  4. Sinitski EH, Hansen AH, Wilken JM. (2012) Biomechanics of the Ankle-Foot System during Stair Ambulation: Implications for Design of Advanced Ankle-Foot Prostheses. Journal of Biomechanics, Vol. 45, 588-594.
  5. Gard SA, Su PF, Lipschutz RD, Hansen AH. (2011) The Effect of Prosthetic Ankle Units on Roll-Over Shape Characteristics During Walking in Persons with Bilateral Transtibial Amputations. Journal of Rehabilitation Research and Development, Vol. 48, No. 9, 1037-1048.
  6. Hansen AH, Wang CC. (2011) Effect of Rocker Shoe Radius on Oxygen Consumption Rate in Young Able-bodied Persons. Journal of Biomechanics, Vol. 44, 1021-1024.
  7. Dillon M, Fatone S, Hansen AH. (2011) The Effect of Prosthetic Design on the Center of Pressure Excursion in Partial Foot Prostheses. Journal of Rehabilitation Research and Development, Vol. 48, No. 2, 161-178.
  8. Klodd E, Hansen AH, Fatone S, Edwards ML. (2010) Effects of Prosthetic Foot Forefoot Flexibility on Gait of Unilateral Transtibial Prosthesis Users. Journal of Rehabilitation Research and Development, Vol. 47, No. 9, 899-910.
  9. Hansen AH, Childress DS. (2010) Investigations of Roll-over Shape: Implications for Design, Alignment, and Evaluation of Ankle-Foot Prostheses and Orthoses. Disability and Rehabilitation, Vol. 32, No. 26, 2201-2209.
  10. Klodd E, Hansen AH, Fatone S, Edwards ML. (2010) Effects of Prosthetic Foot Forefoot Flexibility on Oxygen Cost and Subjective Preference Rankings of Unilateral Transtibial Prosthesis Users. Journal of Rehabilitation Research and Development, Vol. 47, No. 6, 543-552.
  11. Wang CC, Hansen AH. (2010) Response of Able-bodied Persons to Changes in Shoe Rocker Radius during Walking: Changes in Ankle Kinematics to Maintain a Consistent Roll-Over Shape. Journal of Biomechanics, Vol. 43, 2288-2293.
  12. Hansen AH, Wang CC. (2010) Effective Rocker Shapes Used by Able-Bodied Persons for Walking and Fore-aft Swaying: Implications for Design of Ankle-Foot Prostheses. Gait and Posture, Vol. 32, 181-184.
  13. Hansen AH, Meier MR. (2010) Roll-over Shapes of the Ankle-Foot and Knee-Ankle-Foot Systems of Able-Bodied Children. Clinical Biomechanics, Vol. 25, 248-255.
  14. Hansen AH, Miff SC, Childress DS, Gard SA, Meier MR. (2010) Net External Energy of the Biologic and Prosthetic Ankle during Gait Initiation. Gait and Posture, Vol. 31, 13-17.
  15. Fatone S, Sorci E, Hansen AH. (2009) Effects of Clinically Prescribed Ankle Foot Orthoses on Ankle-Foot Roll-over Shapes: A Case Series. Journal of Prosthetics and Orthotics, Vol. 21, No. 4, 196-203.
  16. Williams RJ, Hansen AH, Gard SA. (2009) Prosthetic Ankle-Foot Mechanism Capable of Automatic Adaptation to the Walking Surface. Journal of Biomechanical Engineering, Vol., 131, No. 3, 035002.
  17. Srinivasan S, Westervelt ER, Hansen AH. (2009) A Low-Dimensional Sagittal Plane Forward-Dynamic Model for Asymmetric Gait and its Application to Study the Gait of Transtibial Prosthesis Users. Journal of Biomechanical Engineering, Vol. 131, No. 3, 031003.
  18. Hansen AH, Childress DS. (2009) Effects of Shoe Heel Height on the Roll-over Shapes of Prosthetic Ankle-Foot Systems: Implications for Heel-Height Adjustable Components. Journal of Prosthetics and Orthotics, Vol. 21, No. 1, 48-54.
  19. Hansen AH. (2008) Effects of Alignment on the Roll-over Shapes of Prosthetic Feet. Prosthetics and Orthotics International, Vol. 32, No. 4, 390-402.
  20. Dillon M, Hansen AH, Fatone S. (2008) Influence of Marker Models on Ankle Kinematics in Persons with Partial Foot Amputation: An Investigation Using a Mechanical Model. Journal of Rehabilitation Research and Development, Vol. 45, No. 4, 567-576.
  21. Miff SC, Hansen AH, Childress DS, Gard SA, Meier MR. (2008) Roll-over Shapes of the Able-Bodied Knee-Ankle-Foot System during Gait Initiation, Steady-State Walking, and Gait Termination. Gait and Posture, Vol. 27, 316-322.
  22. Fatone S. and Hansen AH. (2007) Effect of an Ankle Foot Orthosis on Roll-over Shape in Adults with Hemiplegia. Journal of Rehabilitation Research& Development, Vol. 44, No. 1, 11-20.
  23. Fatone S. and Hansen AH. (2007) A Model to Predict the Effect of Ankle Joint Misalignment on Calf Band Movement in Ankle-Foot Orthoses. Prosthetics and Orthotics International, Vol. 31, No. 1, 76-87.
  24. Hansen, A., Meier, M., Sessoms, P., Childress, D. (2006) The Effects of Prosthetic Foot Roll-over Shape Arc Length on the Gait of Trans-tibial Prosthesis Users. Prosthetics and Orthotics International, Vol. 30, No. 3, 286-299.
  25. Miff, S., Childress, D., Gard, S., Meier, M., Hansen, A. (2005) Temporal Symmetries During Gait Initiation and Termination in Non-Disabled Ambulators and in People with Unilateral Transtibial Limb Loss. Journal of Rehabilitation Research and Development, Vol. 42, No. 2, 175-182.
  26. Hansen, A., Childress, D. (2005) Effects of Adding Weight to the Torso on Roll-over Characteristics of Walking. Journal of Rehabilitation Research and Development, Vol. 42, No. 3, 381-390.
  27. Meier, M., Sam, M., Hansen, A., Childress, D. (2004) The Shape&Roll Prosthetic Foot (Part II): Field Testing in El Salvador. Medicine Conflict and Survival, Vol. 20, No. 4, 307-325.
  28. Sam, M., Childress, D., Hansen, A., Meier, M., Lambla, S., Grahn, E., Rolock, J. (2004) The Shape&Roll Prosthetic Foot (Part I): Design and Development of Appropriate Technology for Low-Income Countries. Medicine Conflict and Survival, Vol. 20, No. 4, 294-306.
  29. Sam, M., Hansen, A., Childress, D. (2004) Characterization of Prosthetic Feet Used in Low-Income Countries. Prosthetics and Orthotics International, Vol. 28, 132-140.
  30. Hansen, A., Childress, D. (2004) Effects of Shoe Heel Height on Biologic Roll-over Characteristics During Walking. Journal of Rehabilitation Research and Development, Vol. 41, No. 4, 547-554.
  31. Hansen, A., Sam, M., Childress, D. (2004) The Effective Foot Length Ratio (EFLR) A Potential Tool for Characterization and Evaluation of Prosthetic Feet. Journal of Prosthetics and Orthotics, Vol. 16, No. 2, 41-45.
  32. Hansen, A., Childress, D., Knox, E. (2004) Roll-over Shapes of Human Locomotor Systems: Effects of Walking Speed. Clinical Biomechanics, Vol. 19, No. 4, 407-414.
  33. Hansen, A., Childress, D., Miff, S., Gard, S., Mesplay, K. (2004) The Human Ankle During Walking: Implications for Design of Biomimetic Ankle Prostheses and Orthoses. Journal of Biomechanics, Vol. 37, No. 10, 1467-1474.
  34. Hansen, A., Childress, D., Miff, S. (2004) Roll-over Characteristics of Human Walking on Inclined Surfaces. Human Movement Science, Vol. 23, No. 6, 807-821.
  35. Hansen, A.H., Meier, M.R., Sam, M., Childress, D.S., Edwards, M.L. (2003) Alignment of Trans-tibial Prostheses Based on Roll-over Shape. Prosthetics and Orthotics International, Vol. 27, No. 2, 89-99.
  36. Hansen, A., Childress, D., Meier, M. (2002) A Simple Method for Determination of Gait Events. Journal of Biomechanics, Vol. 35, No. 1, 135-138.
  37. Hansen, A.H., Childress, D.S., Knox, E.H. (2000) Prosthetic Foot Roll-over Shapes with Implications for Alignment of Trans-tibial Prostheses. Prosthetics and Orthotics International, Vol. 24, No. 3, 205-215.